Patents by Inventor Wayne Keith Webb
Wayne Keith Webb has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8133366Abstract: There is provided a substantially permanent stainless steel cathode plate suitable for use in electrorefining of metal cathodes, the cathode being composed of a low-nickel duplex steel or a lower grade “304” steel, wherein operational adherence of an electrodeposition thereon is enabled by altering various qualities of the cathode surface. There is also provided a method of producing the above duplex or Grade 304 cathode plates, such that the desired operational adherence of the deposit upon the plate is not so strong as to prevent the deposit being removed during subsequent handling.Type: GrantFiled: August 24, 2010Date of Patent: March 13, 2012Assignee: Xstrata Queensland LimitedInventor: Wayne Keith Webb
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Patent number: 7914651Abstract: A cathode plate and method for electro-refining or electro-winning of metal. The cathode includes a cathode blade and hanger bar. A quantity of electrically conductive material is wrapped around the hanger bar and along the cathode blade to a position, in use, proximate the level of electrolyte in the electrolytic bath. The provision of a deeper and preferably thicker coating of electrically conductive material, as compared with conventional cathode plates, reduces power consumption in the electrolytic circuit.Type: GrantFiled: March 14, 2008Date of Patent: March 29, 2011Assignee: Mount Isa Mines LimitedInventors: Nigel James Aslin, Wayne Keith Webb, Reville Wayne Armstrong, Tim Robinson
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Publication number: 20100314255Abstract: There is provided a substantially permanent stainless steel cathode plate suitable for use in electrorefining of metal cathodes, the cathode being composed of a low-nickel duplex steel or a lower grade “304” steel, wherein operational adherence of an electrodeposition thereon is enabled by altering various qualities of the cathode surface. There is also provided a method of producing the above duplex or Grade 304 cathode plates, such that the desired operational adherence of the deposit upon the plate is not so strong as to prevent the deposit being removed during subsequent handling.Type: ApplicationFiled: August 24, 2010Publication date: December 16, 2010Applicant: Xstrata Queensland LimitedInventor: Wayne Keith Webb
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Patent number: 7807028Abstract: There is provided a substantially permanent stainless steel cathode plate suitable for use in electrorefining of metal cathodes, the cathode being composed of a low-nickel duplex steel or a lower grade “304” steel, wherein operational adherence of an electrodeposition thereon is enabled by altering various qualities of the cathode surface. There is also provided a method of producing the above duplex or Grade 304 cathode plates, such that the desired operational adherence of the deposit upon the plate is not so strong as to prevent the deposit being removed during subsequent handling.Type: GrantFiled: November 16, 2005Date of Patent: October 5, 2010Assignee: Xstrata Queensland LimitedInventor: Wayne Keith Webb
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Patent number: 7807029Abstract: There is provided a substantially permanent stainless steel cathode plate (1) suitable for use in electrorefining of metal cathodes, the cathode being composed of a low-nickel duplex steel or a lower grade “304” steel, wherein operational adherence of an electrode-position thereon is enabled by altering various qualities of the cathode surface. There is also provided a method of producing the above duplex or Grade 304 cathode plates, such that the desired operational adherence of the deposit upon the plate is not so strong as to prevent the metal deposit being removed during subsequent handling.Type: GrantFiled: March 9, 2006Date of Patent: October 5, 2010Assignee: Xstrata Queensland LimitedInventor: Wayne Keith Webb
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Publication number: 20100219080Abstract: The present invention relates to electrolytic recovery of metal, and in particular methods and apparatus for producing cathode plates suitable for such electrolytic recovery. A first aspect of the invention provides a method of providing an electrically conductive coating on a cathode plate comprising inverting and submerging an upper portion of the cathode plate in an electrolytic bath adjacent at least one anode and applying a current to electroplate the upper portion of the cathode plate wherein each anode includes: i) a first base portion adapted to be positioned adjacent to a hanger bar of said cathode plate; ii) a second extended portion connected to and extending from the base portion and adapted to be positioned adjacent a blade of the cathode plate wherein the profile of each anode is shaped such that in use, a consistent thickness of coating is electroplated over said hanger bar and cathode blade.Type: ApplicationFiled: May 17, 2010Publication date: September 2, 2010Applicant: Xstrata Queensland LimitedInventors: Wayne Keith Webb, Joanne Weston, Graham Heferen
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Patent number: 7780837Abstract: The present invention relates to electrolytic recovery of metal, and in particular methods and apparatus for producing cathode plates suitable for such electrolytic recovery. The invention provides a method of providing an electrically conductive coating on a cathode plate comprising inverting and submerging an upper portion of the cathode plate in an electrolytic bath adjacent at least one anode and applying a current to electroplate the upper portion of the cathode plate wherein each anode includes: i) a first base portion adapted to be positioned adjacent to a hanger bar of said cathode plate; ii) a second extended portion connected to and extending from the base portion and adapted to be positioned adjacent a blade of the cathode plate wherein the profile of each anode is shaped such that in use, a consistent thickness of coating is electroplated over said hanger bar and cathode blade.Type: GrantFiled: April 29, 2004Date of Patent: August 24, 2010Assignee: Xstrata Queensland LimitedInventors: Wayne Keith Webb, Joanne Weston, Graham Heferen
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Publication number: 20080156655Abstract: A cathode plate and method for electro-refining or electro-winning of metal. The cathode includes a cathode blade and hanger bar. A quantity of electrically conductive material is wrapped around the hanger bar and along the cathode blade to a position, in use, proximate the level of electrolyte in the electrolytic bath. The provision of a deeper and preferably thicker coating of electrically conductive material, as compared with conventional cathode plates, reduces power consumption in the electrolytic circuit.Type: ApplicationFiled: March 14, 2008Publication date: July 3, 2008Inventors: Nigel James ASLIN, Wayne Keith Webb, Reville Wayne Armstrong, Tim Robinson
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Patent number: 7344624Abstract: A cathode plate and method for electro-refining or electro-winning of metal. The cathode includes a cathode blade and hanger bar. A quantity of electrically conductive material is wrapped around the hanger bar and along the cathode blade to a position, in use, proximate the level of electrolyte in the electrolytic bath. The provision of a deeper and preferably thicker coating of electrically conductive material, as compared with conventional cathode plates, reduces power consumption in the electrolytic circuit.Type: GrantFiled: May 2, 2003Date of Patent: March 18, 2008Assignee: Mount Isa Mines LimitedInventors: Nigel James Aslin, Wayne Keith Webb, Reville Wayne Armstrong, Tim Robinson
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Patent number: 7332064Abstract: A hangar bar for a cathode plate and a method of producing a cathode for electrolytic recovery of metal. The hanger bar comprises a support element which is preferably stainless steel and hollow. An electrically conductive metal cladding is affixed the stainless steel bar by any appropriate mechanism, eg interference fit, welding, chemical or mechanical fastening or coextrusion or roll forming. Affixing the cladding to the stainless steel support element has significant advantages over conventional electroplating techniques including that a more precise engineering specification can be applied to the cladding thickness. This is important to maintain vertical alignment of the cathode plate in the electrolytic cell.Type: GrantFiled: January 28, 2003Date of Patent: February 19, 2008Assignee: Mount Isa Mines LimitedInventor: Wayne Keith Webb